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im·post | \ ˈim-ˌpōst 
\
\impost
noun (2)Definition of impost (Entry 2 of 2)
: a block, capital, or molding from which an arch springs — see arch illustration
Synonyms for impost
Synonyms: Noun (1)
- assessment,
- duty,
- imposition,
- levy,
- tax
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Time Traveler for impost
The first known use of impost was in 1568
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